Note for others.... We visited on 12 Jun 2020. We weren't able to find the access described by others from the village side (opposite the cemetery). The bare ground between the village and circle on google maps now has a large new housing estate on it, with fences running behind. We looked but couldn't find any way through. Instead we drove through the recycling plant, if you look carefully about half way through, there is a small black and white sign saying 'Devils Quoits access -->' by a small car park. There is a narrow path through the trees that leads to the site.
Something is not right. This message is just to keep things from messing up down the road